Preheat oven to 450F Blend or sift together flour, sugar, salt, baking powder, and cinnamon. Cut in finely the cold butter. Add craisins and toss gently to coat.
Combine egg and milk. Add to dry ingredients and combine together until a soft dough forms.
Turn onto a lightly floured surface a knead gently 6-8 times. Form into circle about 12" in diameter and 1/2" thick. Cut into eight wedges.
Place on greased baking sheet or Silpat. Brush with milk and sprinkle with sugar. Bake in preheated oven for 10-12 minutes. Yield 8 scones.